Waste valve for bathtubs, etc.



c. H. VEEDER WASTE IALVE FOR BATHTUBS, ETC

Filed April 15, 1926 Patented @ct. 26, 19,26.

til-METRE STATES CURTIS I-IUSSEY VEEDER, F HARTFORD, CONNECTICUT.

WASTE VALVE FOR BATI-I TUIBS, ETC.

Application filed April 15, 1926 Serial No. 102,143.

In an application of George Hiram Henrietta for Letters Patent of the United States for improvements in waste plugs or valves for bathtubs and la-vatories, tiled concurrently herewith, there is shown and described hydraulic means for operating such a valve, the valve being carried by a piston subject to pressure supplied from the water pipe under control of w hand-operated valve. In that application the valve is shown as of the pop-up type, being raised by the applied hydraulic pressure above the bottom of the tub or lavatory to permit the discharge of water therefrom and being also moved by the applied hydraulic pressure to its closed position. The present invention is concerned with the application of hydraulic pressure to the operation of a pop-down valve, which is preferable to the pop-up valve because it leaves the bot-tom of the tube or lavatory unobstructed and therefore more easily kept clean. In the operation of a pop-down valve, moreover, the pressure of the water in the tube or lavatory is added to the weight of the valve itself and its connected parts when the lifting pressure is relieved and the operating devices, in the present instance, are therefore so constructed as to dispense with the application of pressure for the purpose of moving the valve downward from its seat to discharge the contents of the tub or lavatory. A valve which moves downward to its open position can therefore be actuated by a single connection to the control valve and moreover, when open, will remain open by its own weight.

The invention will be more fully explained hereinafter with reference to the accompanying drawings in which it is illustrated and in which the single figure illustrates, partly in elevation and partly in vertical section, the application of hydraulic operating means to the operation of a popdown waste valve for a lavatory.

The outlet-a in the bottom of the lavatory b is shown as having fitted therein a skeleton sleeve 0 which is formed at its upper end with a seat 0 against which the valve plug d is seated when the valve is closed. In the construction shown the skeleton sleeve 0 forms a guide for the valve plug (Z and the water which escapes through the out-let a, when the valve plug is lowered from the seat, escapes through the openings in the sleeve 8 above the valve plug (Z, into a chamher 6 and thence, through the openings in the skeleton sleeve 0, below the head of' the valve plug and around its stem into a lower chamber f to which is connected the usual discharge pipe 9. The head (Z of the valve plug is shown in thi's'instance as carried by a reduced stem which, for added weight, is enlarged at its lower end as at (Z2 and is chambered as at (F, to have afree working fit on a fixed, centrally bored spindle it which is suitably seated in the bottom of the chamber f and has its bore 72/ connected with the water supply system through a suitable pipe W. A. suitable cup packing 2' may be secured to the upper end of the spindle It by a centrally bored screw 71. It will be understood that the stem 0!" with its reaction surface 6Z exposed to the pressure admitted through the pipe h constitutes in effect a piston which carries the valve plug d, subject to the hydraulic pressure in the pipe 7L2.

At its other end the pipe 72, is connected to a three-way control'valve is, the body of which has connected thereto a water supply pipe Z and an exhaust or discharge pipe m. The valve plug is formed with suitable passages 73 and 70 through which water under pressure is admitted from the pipe Z to the pipe 72/ and through which the pipe 72, may be connected to the pipe m to relieve the pressure in the pipe h The channeled plug 70 is carried by astem k in a suitable stuflingdoox n and is provided with an operating handle M.

It will now be understood that when the pressure in the water pipe system is admitted through the control valve is, the pipe 7L and the bored stem or spindle h and is exerted upon the piston surface (Z the valve plug d will be raised against the seat 0 and will be held there as long as the pressure is main tained, even though the control valve 70 be turned to cut ofl? the connection to the water supply pipe. When, however, the valve plug cl is turned to establish communication between the connecting pipe h and the exhaust pipe m, the pressure against the piston surface (i will be relieved and the valve plug (2 will fall from its seat by its own weight with the added pressure of the water in the tub or lavatory upon it. It is therefore unnecessary, in this instance, to provide pressure means to move the valve plug from its eat, in the opening thereof and un necessary to provide for more than one conneption from the waste valve to the control va ve,

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I claim as my invention:

1 In a Waste valve for bath tubs, etc., the combination of a valve seat, a valve plug movable under the action of gravity from the valve seat to open the outlet, a member supporting the valve plug and having a piston surface, and means to admit fluid to exert pressure against the piston surface to move the valve plug against the action of gravity to its seat.

2. In a Waste valve for bath tubs, etc., the combination of a valve seat, a valve plug movable under the action of gravity from the valve seat to open the outlet, a

member supporting the valve plug and having a piston surface, means to admit fluid to exert pressure against the piston surface to move the valve plug against the action of gravity to its seat, and a hand-operated valve to control the admission of fluid under pressure to act against the piston surface.

3. In a Waste valve for bath tubs, etc, the combination of a valve seat. a valve plug movable under the action of gravity from the valve seat to open the outlet, a centrally bored stem supporting the valve plug and movable therewith, a centrally bored spindle fitted Within the bore of the valve stem and itself centrally bored, and a control valve having a connection to a source of fluid pressure, a connection to the bore of said spindle, and a Waste connection.

This specification signed this 13 day of April A. D. 1926.

CURTIS HUSSEY VEEDER. 

